Wednesday, January 30th • Turn in Reading Assignment up front
• Have World Map/Convection Diagram from Monday on
your desk
• Objective: We will diagram the global convection cells on
the Earth.
• Warm-up (discuss with a partner):
1. What causes winds on the Earth?
2. On the world map, mark the latitude with the highest
temperature with a “T” and the latitudes with the coldest
temperatures with a “C”.
Explanation of Content
Positives
• Explains things
multiple times
• You slow down
when students ask
• Teaches very
clearly
Areas for
Growth
• Do not assume we
understand
• More examples
• More handouts
Explanation of Content
Resolutions
1. Use notecards for cold calling
2. Use more animations and visuals in class
Thursday, January 31st
• Have definition assignment out on table
• Grab Coriolis Guided Notes from the front
• Copy objective and work on warm-up
• Objective: We will observe and define the
Coriolis Effect
Quick Questions
Warm air has a (1)________ density and
therefore (2)(rises/falls) creating a region of
(3)________ pressure
Quick Questions
4. What direction do winds in the United
states flow?
a. East to West
b. West to East
c. From the poles to the equator
d. From the equator to the poles
Coriolis Effect Lab
• Move into assigned lab group
• Read background for lab
• Answer Reading question on Lab worksheet
“You spin me right ‘round
baby…”
• If the Earth was not rotating, all winds
would move North and South
– Like one huge beach convection cycle
“You spin me right ‘round
baby…”
• What happened when you tried to draw
straight lines on the spinning paper?
A merry-go-round as an example
of the Coriolis effect
• To an observer above
the merry-go-round,
objects travel straight
• To an observer on the
merry-go-round, objects
follow curved paths
• Internet video of balls
being rolled across a
moving merry-go-round
Figure 6-8
Coriolis Effect
• Because the Earth Spins, moving objects appear to
be deflected from a straight path.
• Coriolis Effect: The apparent deflection of objects
such as winds and storms over the surface of a
planet.
The Coriolis effect on Earth
• As Earth rotates, different latitudes travel at different speeds
• The change in speed with latitude causes the Coriolis effect
Figure 6-9a
Coriolis Effect
• Ships of War
• http://www.uwf.edu/atc/projects/coriolis/ma
in.swf
Northern-Hemisphere
• In the Northern-Hemisphere, objects appear
to be deflected to the right.
– Think NoRth—Right
Quick Questions
4. Use your convection cell map to answer the
following question. If the world was not spinning and
the distance between the poles and equator was
smaller, all winds at the Earth’s surface would
flow…
a. East to West
b. West to East
c. From the poles to the equator
d. From the equator to the poles.
Quick Questions
5. Since the world is rotating, winds at the
surface of the United states tend to flow…
a. East to West
b. West to East
c. From the North Pole to the Equator
d. From the Equator to the North Pole